Mike Mitchell, a former Chicagoan and the organizer behind the rally and its popular "I'm With Coco" Facebook group, is exhorting supporters of the red-headed late-night host to wear orange, bring signs and be civil during a demonstration intent on showing NBC executives that Conan fans aren't happy about his likely departure.

Conan Says Hello to "The Tonight Show"

"We're about supporting Conan and his staff during this debacle," Mitchell said. "Conan's been there for us for 17 years and it'll be cool to show our support for a pop-culture figure like him in such a big way."